Staging
v0.8.1
v0.8.1
swh:1:snp:635f4099902912592851108bcac178ff574f7c5f
Tip revision: 16c8eccfcf85811d1d9368aacb94b47ae8195719 authored by cvs2svn on 31 December 1997, 05:53:15 UTC
This commit was manufactured by cvs2svn to create tag 'release15'.
This commit was manufactured by cvs2svn to create tag 'release15'.
Tip revision: 16c8ecc
termios.c
/* termiosmodule.c -- POSIX terminal I/O module implementation. */
#include <Python.h>
#define PyInit_termios inittermios
#include <termios.h>
#define BAD "bad termios argument"
static PyObject *TermiosError;
/* termios = tcgetattr(fd)
termios is
[iflag, oflag, cflag, lflag, ispeed, ospeed, [cc[0], ..., cc[NCCS]]]
Return the attributes of the terminal device. */
static PyObject *
termios_tcgetattr(self, args)
PyObject *self;
PyObject *args;
{
int fd;
struct termios mode;
PyObject *cc;
speed_t ispeed, ospeed;
PyObject *v;
int i;
char ch;
if (!PyArg_Parse(args, "i", &fd))
return NULL;
if (tcgetattr(fd, &mode) == -1)
return PyErr_SetFromErrno(TermiosError);
ispeed = cfgetispeed(&mode);
ospeed = cfgetospeed(&mode);
cc = PyList_New(NCCS);
if (cc == NULL)
return NULL;
for (i = 0; i < NCCS; i++) {
ch = (char)mode.c_cc[i];
v = PyString_FromStringAndSize(&ch, 1);
if (v == NULL)
goto err;
PyList_SetItem(cc, i, v);
}
/* Convert the MIN and TIME slots to integer. On some systems, the
MIN and TIME slots are the same as the EOF and EOL slots. So we
only do this in noncanonical input mode. */
if ((mode.c_lflag & ICANON) == 0) {
v = PyInt_FromLong((long)mode.c_cc[VMIN]);
if (v == NULL)
goto err;
PyList_SetItem(cc, VMIN, v);
v = PyInt_FromLong((long)mode.c_cc[VTIME]);
if (v == NULL)
goto err;
PyList_SetItem(cc, VTIME, v);
}
if (!(v = PyList_New(7)))
goto err;
PyList_SetItem(v, 0, PyInt_FromLong((long)mode.c_iflag));
PyList_SetItem(v, 1, PyInt_FromLong((long)mode.c_oflag));
PyList_SetItem(v, 2, PyInt_FromLong((long)mode.c_cflag));
PyList_SetItem(v, 3, PyInt_FromLong((long)mode.c_lflag));
PyList_SetItem(v, 4, PyInt_FromLong((long)ispeed));
PyList_SetItem(v, 5, PyInt_FromLong((long)ospeed));
PyList_SetItem(v, 6, cc);
if (PyErr_Occurred()){
Py_DECREF(v);
goto err;
}
return v;
err:
Py_DECREF(cc);
return NULL;
}
/* tcsetattr(fd, when, termios)
Set the attributes of the terminal device. */
static PyObject *
termios_tcsetattr(self, args)
PyObject *self;
PyObject *args;
{
int fd, when;
struct termios mode;
speed_t ispeed, ospeed;
PyObject *term, *cc, *v;
int i;
if (!PyArg_Parse(args, "(iiO)", &fd, &when, &term))
return NULL;
if (!PyList_Check(term) || PyList_Size(term) != 7) {
PyErr_SetString(PyExc_TypeError, BAD);
return NULL;
}
mode.c_iflag = (tcflag_t) PyInt_AsLong(PyList_GetItem(term, 0));
mode.c_oflag = (tcflag_t) PyInt_AsLong(PyList_GetItem(term, 1));
mode.c_cflag = (tcflag_t) PyInt_AsLong(PyList_GetItem(term, 2));
mode.c_lflag = (tcflag_t) PyInt_AsLong(PyList_GetItem(term, 3));
ispeed = (speed_t) PyInt_AsLong(PyList_GetItem(term, 4));
ospeed = (speed_t) PyInt_AsLong(PyList_GetItem(term, 5));
cc = PyList_GetItem(term, 6);
if (PyErr_Occurred())
return NULL;
if (!PyList_Check(cc) || PyList_Size(cc) != NCCS) {
PyErr_SetString(PyExc_TypeError, BAD);
return NULL;
}
for (i = 0; i < NCCS; i++) {
v = PyList_GetItem(cc, i);
if (PyString_Check(v) && PyString_Size(v) == 1)
mode.c_cc[i] = (cc_t) * PyString_AsString(v);
else if (PyInt_Check(v))
mode.c_cc[i] = (cc_t) PyInt_AsLong(v);
else {
PyErr_SetString(PyExc_TypeError, BAD);
return NULL;
}
}
if (cfsetispeed(&mode, (speed_t) ispeed) == -1)
return PyErr_SetFromErrno(TermiosError);
if (cfsetospeed(&mode, (speed_t) ospeed) == -1)
return PyErr_SetFromErrno(TermiosError);
if (tcsetattr(fd, when, &mode) == -1)
return PyErr_SetFromErrno(TermiosError);
Py_INCREF(Py_None);
return Py_None;
}
/* tcsendbreak(fd, duration)
Generate a break condition. */
static PyObject *
termios_tcsendbreak(self, args)
PyObject *self;
PyObject *args;
{
int fd, duration;
if (!PyArg_Parse(args, "(ii)", &fd, &duration))
return NULL;
if (tcsendbreak(fd, duration) == -1)
return PyErr_SetFromErrno(TermiosError);
Py_INCREF(Py_None);
return Py_None;
}
/* tcdrain(fd)
Wait until all queued output to the terminal has been
transmitted. */
static PyObject *
termios_tcdrain(self, args)
PyObject *self;
PyObject *args;
{
int fd;
if (!PyArg_Parse(args, "i", &fd))
return NULL;
if (tcdrain(fd) == -1)
return PyErr_SetFromErrno(TermiosError);
Py_INCREF(Py_None);
return Py_None;
}
/* tcflush(fd, queue)
Clear the input and/or output queues associated with
the terminal. */
static PyObject *
termios_tcflush(self, args)
PyObject *self;
PyObject *args;
{
int fd, queue;
if (!PyArg_Parse(args, "(ii)", &fd, &queue))
return NULL;
if (tcflush(fd, queue) == -1)
return PyErr_SetFromErrno(TermiosError);
Py_INCREF(Py_None);
return Py_None;
}
/* tcflow(fd, action)
Perform operations relating to XON/XOFF flow control on
the terminal. */
static PyObject *
termios_tcflow(self, args)
PyObject *self;
PyObject *args;
{
int fd, action;
if (!PyArg_Parse(args, "(ii)", &fd, &action))
return NULL;
if (tcflow(fd, action) == -1)
return PyErr_SetFromErrno(TermiosError);
Py_INCREF(Py_None);
return Py_None;
}
static PyMethodDef termios_methods[] =
{
{"tcgetattr", termios_tcgetattr},
{"tcsetattr", termios_tcsetattr},
{"tcsendbreak", termios_tcsendbreak},
{"tcdrain", termios_tcdrain},
{"tcflush", termios_tcflush},
{"tcflow", termios_tcflow},
{NULL, NULL}
};
void
PyInit_termios()
{
PyObject *m, *d;
m = Py_InitModule("termios", termios_methods);
d = PyModule_GetDict(m);
TermiosError = PyErr_NewException("termios.error", NULL, NULL);
PyDict_SetItemString(d, "error", TermiosError);
}